Increased detection in Australia and Singapore of a novel influenza A(H1N1)2009 variant with reduced oseltamivir and zanamivir sensitivity due to a S247N neuraminidase mutation Hurt, A C and Lee, R T and Leang, S K and Cui, L and Deng, Y M and Phuah, S P and Caldwell, N and Freeman, K and Komadina, N and Smith, D and Speers, D and Kelso, A and Lin, R T and Maurer-Stroh, S and Barr, I G, Eurosurveillance, 16, 19884 (2011), https://doi.org/10.2807/ese.16.23.19884-en